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Bogdan [553]
3 years ago
12

A first grade class of nine girls and seven boys walks into class in alphabetical order (by last name). What is the probability

that three girls are the first to enter the room?
Mathematics
1 answer:
prohojiy [21]3 years ago
4 0
18.75 percent because 3/16 x 100 = 18.75
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To make 12 ounces of hot chocolate 3 tablespoons of cocoa are needed how many tablespoons of cocoa are needed to make 72 ounces
tiny-mole [99]

Answer:

you would need 18 tablespoons

Step-by-step explanation:

12--->72, so 3--->18

you are multiplying it by 6

6 0
3 years ago
Read 2 more answers
Solve the inequality and graph the solution. −0.8b + 2.3 ≥ 8.7
zlopas [31]

The solution of the inequality is -8 ≥ b, and the correct graph is the one in option D.

"number line with a closed circle plotted at negative eight and arrow pointing left."

<h3>How to solve the inequality?</h3>

Here we have the inequality:

-0.8*b + 2.3  ≥ 8.7

And we want to solve this, to do so, we need to isolate the variable b in one of the sides of the inequality.

-0.8*b + 2.3  ≥ 8.7

2.3 - 8.7 ≥ 0.8*b

-6.4  ≥ 0.8*b

-6.4/0.8  ≥ b

-8 ≥ b

So the solution is the set of all numbers equal to or smaller than -8, then the correct graph will be the one described by D.

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5 0
1 year ago
F<br> 2. What is the leading coefficient of the polynomial? - 7x2+ 3x -10<br> re
zhenek [66]

Answer:

The leading coefficient is -7

Step-by-step explanation:

The leading coefficient is the number in front of the highest power variable.  In this case, the highest variable is x^2 and in front of it is -7.  Therefore, the leading coefficient is -7

Answer:  The leading coefficient is -7

5 0
2 years ago
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Analyze the graph of the cube root function shown
Greeley [361]

The values of a, h, and k in the general equation is h=1, k=4 and a=2

<h3>What is parent function?</h3>

The function which can be transformed into different ways is the parent function.

On a coordinate plane, a cubic function approaches the x-axis in quadrant 2, crosses the y-axis at (0, 2), has an inflection point at (1, 4), and the goes through (2, 6).

The given function is

y =a³ √(x -h) + k

Put the coordinate (0,2) in the equation, we get

2 = a³ √(0 -h) + k..................(1)

Plug (1, 4), we have

4 =  a³ √(1 -h) + k..................(2)

Plug (2, 6), we have

6 =  a³ √(2 -h) + k..................(3)

On solving these three equations, we have

h=1

k=4

a=2

Thus, value of h is 1, k is 4 and a is 2.

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7 0
1 year ago
What is the slope of the line that contains these points?
solmaris [256]

Answer:

-4

Step-by-step explanation:

7 0
3 years ago
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